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Finding the Fourth Proportional to 66,679.38, 99,967.14 and 33,382.29

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Solution

The fourth proportional to 66,679.38, 99,967.14 and 33,382.29 is: 50,047.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,679.38 : 99,967.14 = 33,382.29 : x
  2. Step 2: Convert to fraction form
    66,679.38/99,967.14 = 33,382.29/x
  3. Step 3: Cross multiply
    66,679.38x = 99,967.14 × 33,382.29
  4. Step 4: Simplify right side
    66,679.38x = 3,337,132,057.95
  5. Step 5: Solve for x
    x = 3,337,132,057.95/66,679.38
  6. Step 6: Final answer
    x = 50,047.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.